The more I work on this, the more confused I get. Whoever wired up this house had no idea what they were doing. Anyway, here is exactly what I had prior to installing the switches:
3 pole switch with: Brown (Line), White (Load), Red (Trans)
Also has White (Neutral) and Green (Ground)
4 pole switch with: 2x Red (Trans), 2x White (Load)
Also has Green (Ground) and 2x Black, nut together. Tested and this does have continuity with the neutral from the light.
3 pole switch with: Green (Ground), White (Load), Red (Trans), Black (Must be the load out to the light?)
What is not working:
12727 in box 1
12728 in box 2 with the white wires connected, two black wires in neutral, two red in trans
12728 in box 3 with… no idea. Seems like it should be the white and black connected, but then I don’t have a neutral. Connecting red, black, and white bypasses the switch, so that I what I am doing right now.
Temporarily I have the 12727 on box 1, the 4 pole in box 2, and the third bypassed. The 12727 works fine as long as box 2 is on…